Feature:1. 2.4G wireless transfer technology for strong and secured wireless signal.2. Ergonomic inclination angle, comfortable tapping feel, the wrist is naturally vertical when used, reducing hand fatigue.3. Responsive keys, quick to rebound, suitable for longterm typing, practical to use.4. Micro USB receiver, plug and play, without any driver, very convenient for using.5. Fine workmanship, stylish and simple, thin and lightweight, which can better show your individual taste.Specification:Condition: 100% Brand NewItem Type: Keyboard Mouse SetMaterial: ABSOptional Color: Black, WhiteSupporting Battery: 3 x AAA Dry Battery, 2pcs for keyboard and 1 for mouse (not include)Keyboard Size(LxWxH): Approx. 285 x 120 x 23mm/11.2 x 4.7 x 0.9inMouse Size (LxWxH): Approx. 85 x 48 x 26mm/3.3 x 1.9 x 1inNumber of Keys: Keyboard 78 Keys, Mouse 3 KeysKeyboard Interface: USBConnection Principle: 2.4G wireless principleSystem Requirements: for Win7/for win8/for xp, does not need to drive the keyboard.Package List:1 x Keyboard 1 x Mouse 1 x USB Receiver 1 x Keyboard Cover1 x ManualNote:The mouse has a unique designed, please refer to the instruction manual before use.